$ curl "https://bootstrap.pypa.io/get-pip.py" -o "get-pip.py"
$ sudo python get-pip.py
$ rm get-pip.py

$ sudo pip install podgen
$ sudo pip install requests
$ sudo pip install lxml 或者 sudo apt-get install python-lxml
$ sudo pip install beautifulsoup4

$ sudo pip install virtualenv
$ sudo virtualenv --no-site-packages podcast --always-copy
$ pip install -r requirements.txt
$ deactivate # 退出虚拟环境

$ python app.py ximalaya 8475135 # 喜马拉雅
$ python app.py qingting 212192  # 蜻蜓fm

$ python app.py xiamalaya 8475135,269179